Printmaking Techniques
Lindsay: monotype created in our printmaking class. Printmaking is a process for producing a work of art in ink; the work called a print is created indirectly, through the transfer of ink from the surface upon which the work was originally drawn or composed. Performing this printmaking can be done in the following techniques. The most popular are the woodcut, etching, lithography, and screen-printing. Other printmaking techniques include chine-collé, collography, monotyping, engraving, drypoint, mezzotint, linocut, aquatint and batik. These techniques can also be combined.
Woodcut is a type of relief print thought to be the earliest printmaking technique, dating back to 9th century China. The artist draws a sketch on a plank of wood and then uses sharp tools to carve away the parts of the block that he/she does not want to receive the ink. The raised parts of the block are inked with a brayer and then a sheet of paper, perhaps slightly damp, is placed over the block. The block is then rubbed with a baren or spoon, or is run through the press.
Etching prints are generally linear and often contain fine detail and contours. Lines can vary from smooth to sketchy. A waxy acid-resist, known as a ground, is applied to a metal plate. After the ground has dried the artist uses a sharp tool to scratch into the ground, exposing the metal. The plate is then completely submerged in an acid that eats away at the exposed metal. This process is known as biting. The waxy resist protects the acid from biting the parts of the plate that have not been scratched into. The longer the plate remains in the acid the deeper the incisions become. The plate is removed from the acid and the ground is removed with a solvent such as turpentine. The entire plate is inked. A wad of cloth is often used to push the ink into the incised lines. The surface is wiped clean with a piece of stiff fabric known as tarlatan or newsprint paper. The wiping leaves ink only in the incisions. A damp piece of paper is placed over the plate and it is run through the press.
Lithography a printing technology developed a method of imaging limestone from which a print was produced. Based on the principle that oil and water do not mix, an aluminum or plastic plate is coated with a photopolymer film that is exposed to light through a photographic mask. The exposed areas are chemically "hardened," and the unexposed areas are dissolved when the plate is put through a chemical process. When printing a page, the plate is dampened, and the water adheres only to the unexposed, non-image areas, which repell the greasy ink that is applied to the plate immediately thereafter.
Screen-printing also known as "silk-screening" creates bold color using a stencil technique. The artist draws an image on a piece of paper or plastic film can also be used. The image is cut out creating a stencil. A screen is made of a piece of fabric stretched over a wood frame. The stencil is affixed to the screen. The screen is then placed on top of a piece of dry paper or fabric. Ink is then placed across the top length of the screen. A squeegee (rubber blade) is used to spread the ink across the screen, over the stencil, and onto the paper/fabric. The screen is lifted and the image is transferred onto the paper/fabric. Each color requires a separate stencil. The screen can be re-used after cleaning.
